feat(macports): add commands to get list of updated ports (#8698)

plugins/macports/macports.plugin.zsh

@@ -1,6 +1,44 @@
 alias pc="sudo port clean --all installed"
 alias pi="sudo port install"
+alias pli="port livecheck installed"
+alias plm="port-livecheck-maintainer"
 alias psu="sudo port selfupdate"
 alias puni="sudo port uninstall inactive"
 alias puo="sudo port upgrade outdated"
-alias pup="psu && puo"
+alias pup="sudo port selfupdate && sudo port upgrade outdated"
+
+port-livecheck-maintainer() {
+  (( ${+commands[port]} == 0 )) || {
+    print -- "port: not found" >&2
+    return 1
+  }
+
+  local -a help_flag
+  zparseopts -D -E h=help_flag -help=help_flag
+
+  (( ${#help_flag} )) && {
+    cat << EOF >&2
+Usage:
+  port-livecheck-maintainer
+  port-livecheck-maintainer (maintainer)+
+  port-livecheck-maintainer -h|--help
+
+Check
+
+Options:
+  maintainer  maintainer id
+  -h          print this help message and exit
+EOF
+    return 1
+  }
+
+  if (( $# == 0 )); then
+    local default=${MACPORTS_MAINTAINER:-${USER}}
+    port livecheck maintainer:${default}
+    return $?
+  fi
+
+  for i in $@; do
+    port livecheck maintainer:${i}
+  done
+}